Update Rust crate tokio to 1.27

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dev-dependencies	minor	1.26 -> 1.27
tokio (source)	dependencies	minor	1.26 -> 1.27

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Release Notes

tokio-rs/tokio

v1.27.0: Tokio v1.27.0

Compare Source

1.27.0 (March 27th, 2023)

This release bumps the MSRV of Tokio to 1.56. (#​5559)

Added

• io: add async_io helper method to sockets (#​5512)
• io: add implementations of AsFd/AsHandle/AsSocket (#​5514, #​5540)
• net: add UdpSocket::peek_sender() (#​5520)
• sync: add RwLockWriteGuard::{downgrade_map, try_downgrade_map} (#​5527)
• task: add JoinHandle::abort_handle (#​5543)

Changed

• io: use memchr from libc (#​5558)
• macros: accept path as crate rename in #[tokio::main] (#​5557)
• macros: update to syn 2.0.0 (#​5572)
• time: don't register for a wakeup when Interval returns Ready (#​5553)

Fixed

• fs: fuse std iterator in ReadDir (#​5555)
• tracing: fix spawn_blocking location fields (#​5573)
• time: clean up redundant check in Wheel::poll() (#​5574)

Documented

• macros: define cancellation safety (#​5525)
• io: add details to docs of tokio::io::copy[_buf] (#​5575)
• io: refer to ReaderStream and StreamReader in module docs (#​5576)

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